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doi:10.1007/BF02284971 Morris D, Khurasany M, Nguyen T, Kim J, Guilford F, Mehta R L-Glutathion Shot:4 Shots According to research, an excessive buildup of hydrogen peroxide is a primary cause of grey hair. This buildup bleaches the hair from the inside out and damages the melanocyte melanin-producing cells ... https://media.springernature.com/lw1200/springer-static/image/art%3A10.1038%2Fs41598-025-87461-2/MediaObjects/41598_2025_87461_Fig1_HTML.png
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